drivers/regulator/mt6358-regulator.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // Copyright (c) 2019 MediaTek Inc.
   4
   5 #include <linux/mfd/mt6358/registers.h>
   6 #include <linux/mfd/mt6397/core.h>
   7 #include <linux/module.h>
   8 #include <linux/of.h>
   9 #include <linux/platform_device.h>
  10 #include <linux/regmap.h>
  11 #include <linux/regulator/driver.h>
  12 #include <linux/regulator/machine.h>
  13 #include <linux/regulator/mt6358-regulator.h>
  14 #include <linux/regulator/of_regulator.h>
  15
  16 #include <dt-bindings/regulator/mediatek,mt6397-regulator.h>
  17
  18 /*
  19  * MT6358 regulators' information
  20  *
  21  * @desc: standard fields of regulator description.
  22  * @qi: Mask for query enable signal status of regulators
  23  */
  24 struct mt6358_regulator_info {
  25         struct regulator_desc desc;
  26         u32 status_reg;
  27         u32 qi;
  28         u32 da_vsel_reg;
  29         u32 da_vsel_mask;
  30         u32 modeset_reg;
  31         u32 modeset_mask;
  32 };
  33
  34 #define to_regulator_info(x) container_of((x), struct mt6358_regulator_info, desc)
  35
  36 #define MT6358_BUCK(match, vreg, supply, min, max, step,        \
  37                     vosel_mask, _da_vsel_reg, _da_vsel_mask,    \
  38                     _modeset_reg, _modeset_shift)               \
  39 [MT6358_ID_##vreg] = {  \
  40         .desc = {       \
  41                 .name = #vreg,  \
  42                 .supply_name = supply,          \
  43                 .of_match = of_match_ptr(match),        \
  44                 .ops = &mt6358_buck_ops,        \
  45                 .type = REGULATOR_VOLTAGE,      \
  46                 .id = MT6358_ID_##vreg,         \
  47                 .owner = THIS_MODULE,           \
  48                 .n_voltages = ((max) - (min)) / (step) + 1,     \
  49                 .min_uV = (min),                \
  50                 .uV_step = (step),              \
  51                 .vsel_reg = MT6358_BUCK_##vreg##_ELR0,  \
  52                 .vsel_mask = vosel_mask,        \
  53                 .enable_reg = MT6358_BUCK_##vreg##_CON0,        \
  54                 .enable_mask = BIT(0),  \
  55                 .of_map_mode = mt6358_map_mode, \
  56         },      \
  57         .status_reg = MT6358_BUCK_##vreg##_DBG1,        \
  58         .qi = BIT(0),   \
  59         .da_vsel_reg = _da_vsel_reg,    \
  60         .da_vsel_mask = _da_vsel_mask,  \
  61         .modeset_reg = _modeset_reg,    \
  62         .modeset_mask = BIT(_modeset_shift),    \
  63 }
  64
  65 #define MT6358_LDO(match, vreg, supply, volt_ranges, enreg, enbit, vosel, vosel_mask) \
  66 [MT6358_ID_##vreg] = {  \
  67         .desc = {       \
  68                 .name = #vreg,  \
  69                 .supply_name = supply,          \
  70                 .of_match = of_match_ptr(match),        \
  71                 .ops = &mt6358_volt_table_ops,  \
  72                 .type = REGULATOR_VOLTAGE,      \
  73                 .id = MT6358_ID_##vreg, \
  74                 .owner = THIS_MODULE,   \
  75                 .n_voltages = ARRAY_SIZE(volt_ranges##_ranges) * 11,    \
  76                 .linear_ranges = volt_ranges##_ranges,          \
  77                 .linear_range_selectors_bitfield = volt_ranges##_selectors,     \
  78                 .n_linear_ranges = ARRAY_SIZE(volt_ranges##_ranges),    \
  79                 .vsel_range_reg = vosel,        \
  80                 .vsel_range_mask = vosel_mask,  \
  81                 .vsel_reg = MT6358_##vreg##_ANA_CON0,   \
  82                 .vsel_mask = GENMASK(3, 0),     \
  83                 .enable_reg = enreg,    \
  84                 .enable_mask = BIT(enbit),      \
  85         },      \
  86         .status_reg = MT6358_LDO_##vreg##_CON1, \
  87         .qi = BIT(15),  \
  88 }
  89
  90 #define MT6358_LDO1(match, vreg, supply, min, max, step,        \
  91                     _da_vsel_reg, _da_vsel_mask, vosel, vosel_mask)     \
  92 [MT6358_ID_##vreg] = {  \
  93         .desc = {       \
  94                 .name = #vreg,  \
  95                 .supply_name = supply,          \
  96                 .of_match = of_match_ptr(match),        \
  97                 .ops = &mt6358_volt_range_ops,  \
  98                 .type = REGULATOR_VOLTAGE,      \
  99                 .id = MT6358_ID_##vreg, \
 100                 .owner = THIS_MODULE,   \
 101                 .n_voltages = ((max) - (min)) / (step) + 1,     \
 102                 .min_uV = (min),                \
 103                 .uV_step = (step),              \
 104                 .vsel_reg = vosel,      \
 105                 .vsel_mask = vosel_mask,        \
 106                 .enable_reg = MT6358_LDO_##vreg##_CON0, \
 107                 .enable_mask = BIT(0),  \
 108         },      \
 109         .da_vsel_reg = _da_vsel_reg,    \
 110         .da_vsel_mask = _da_vsel_mask,  \
 111         .status_reg = MT6358_LDO_##vreg##_DBG1, \
 112         .qi = BIT(0),   \
 113 }
 114
 115 #define MT6358_REG_FIXED(match, vreg, supply, enreg, enbit, volt)       \
 116 [MT6358_ID_##vreg] = {  \
 117         .desc = {       \
 118                 .name = #vreg,  \
 119                 .supply_name = supply,          \
 120                 .of_match = of_match_ptr(match),        \
 121                 .ops = &mt6358_volt_fixed_ops,  \
 122                 .type = REGULATOR_VOLTAGE,      \
 123                 .id = MT6358_ID_##vreg, \
 124                 .owner = THIS_MODULE,   \
 125                 .n_voltages = 11,       \
 126                 .vsel_reg = MT6358_##vreg##_ANA_CON0,   \
 127                 .vsel_mask = GENMASK(3, 0),     \
 128                 .enable_reg = enreg,    \
 129                 .enable_mask = BIT(enbit),      \
 130                 .min_uV = volt, \
 131                 .uV_step = 10000, \
 132         },      \
 133         .status_reg = MT6358_LDO_##vreg##_CON1, \
 134         .qi = BIT(15),                                                  \
 135 }
 136
 137 #define MT6366_BUCK(match, vreg, min, max, step,                \
 138         vosel_mask, _da_vsel_reg, _da_vsel_mask,        \
 139         _modeset_reg, _modeset_shift)           \
 140 [MT6366_ID_##vreg] = {  \
 141         .desc = {       \
 142                 .name = #vreg,  \
 143                 .supply_name = "vsys-" match,           \
 144                 .of_match = of_match_ptr(match),        \
 145                 .ops = &mt6358_buck_ops,        \
 146                 .type = REGULATOR_VOLTAGE,      \
 147                 .id = MT6366_ID_##vreg,         \
 148                 .owner = THIS_MODULE,           \
 149                 .n_voltages = ((max) - (min)) / (step) + 1,     \
 150                 .min_uV = (min),                \
 151                 .uV_step = (step),              \
 152                 .vsel_reg = MT6358_BUCK_##vreg##_ELR0,  \
 153                 .vsel_mask = vosel_mask,        \
 154                 .enable_reg = MT6358_BUCK_##vreg##_CON0,        \
 155                 .enable_mask = BIT(0),  \
 156                 .of_map_mode = mt6358_map_mode, \
 157         },      \
 158         .status_reg = MT6358_BUCK_##vreg##_DBG1,        \
 159         .qi = BIT(0),   \
 160         .da_vsel_reg = _da_vsel_reg,    \
 161         .da_vsel_mask = _da_vsel_mask,  \
 162         .modeset_reg = _modeset_reg,    \
 163         .modeset_mask = BIT(_modeset_shift),    \
 164 }
 165
 166 #define MT6366_LDO(match, vreg, volt_ranges, supply, enreg, enbit, vosel, vosel_mask) \
 167 [MT6366_ID_##vreg] = {  \
 168         .desc = {       \
 169                 .name = #vreg,  \
 170                 .supply_name = supply,          \
 171                 .of_match = of_match_ptr(match),        \
 172                 .ops = &mt6358_volt_table_ops,  \
 173                 .type = REGULATOR_VOLTAGE,      \
 174                 .id = MT6366_ID_##vreg, \
 175                 .owner = THIS_MODULE,   \
 176                 .n_voltages = ARRAY_SIZE(volt_ranges##_ranges) * 11,    \
 177                 .linear_ranges = volt_ranges##_ranges,          \
 178                 .linear_range_selectors_bitfield = volt_ranges##_selectors,     \
 179                 .n_linear_ranges = ARRAY_SIZE(volt_ranges##_ranges),    \
 180                 .vsel_range_reg = vosel,        \
 181                 .vsel_range_mask = vosel_mask,  \
 182                 .vsel_reg = MT6358_##vreg##_ANA_CON0,   \
 183                 .vsel_mask = GENMASK(3, 0),     \
 184                 .enable_reg = enreg,    \
 185                 .enable_mask = BIT(enbit),      \
 186         },      \
 187         .status_reg = MT6358_LDO_##vreg##_CON1, \
 188         .qi = BIT(15),  \
 189 }
 190
 191 #define MT6366_LDO1(match, vreg, supply, min, max, step,        \
 192                     _da_vsel_reg, _da_vsel_mask, vosel, vosel_mask)     \
 193 [MT6366_ID_##vreg] = {  \
 194         .desc = {       \
 195                 .name = #vreg,  \
 196                 .supply_name = supply,          \
 197                 .of_match = of_match_ptr(match),        \
 198                 .ops = &mt6358_volt_range_ops,  \
 199                 .type = REGULATOR_VOLTAGE,      \
 200                 .id = MT6366_ID_##vreg, \
 201                 .owner = THIS_MODULE,   \
 202                 .n_voltages = ((max) - (min)) / (step) + 1,     \
 203                 .min_uV = (min),                \
 204                 .uV_step = (step),              \
 205                 .vsel_reg = vosel,      \
 206                 .vsel_mask = vosel_mask,        \
 207                 .enable_reg = MT6358_LDO_##vreg##_CON0, \
 208                 .enable_mask = BIT(0),  \
 209         },      \
 210         .da_vsel_reg = _da_vsel_reg,    \
 211         .da_vsel_mask = _da_vsel_mask,  \
 212         .status_reg = MT6358_LDO_##vreg##_DBG1, \
 213         .qi = BIT(0),   \
 214 }
 215
 216 #define MT6366_REG_FIXED(match, vreg, supply, enreg, enbit, volt)       \
 217 [MT6366_ID_##vreg] = {  \
 218         .desc = {       \
 219                 .name = #vreg,  \
 220                 .supply_name = supply,          \
 221                 .of_match = of_match_ptr(match),        \
 222                 .ops = &mt6358_volt_fixed_ops,  \
 223                 .type = REGULATOR_VOLTAGE,      \
 224                 .id = MT6366_ID_##vreg, \
 225                 .owner = THIS_MODULE,   \
 226                 .n_voltages = 11,       \
 227                 .vsel_reg = MT6358_##vreg##_ANA_CON0,   \
 228                 .vsel_mask = GENMASK(3, 0),     \
 229                 .enable_reg = enreg,    \
 230                 .enable_mask = BIT(enbit),      \
 231                 .min_uV = volt, \
 232                 .uV_step = 10000, \
 233         },      \
 234         .status_reg = MT6358_LDO_##vreg##_CON1, \
 235         .qi = BIT(15),                                                  \
 236 }
 237
 238
 239 /* VDRAM2 voltage selector not shown in datasheet */
 240 static const unsigned int vdram2_selectors[] = { 0, 12 };
 241 static const struct linear_range vdram2_ranges[] = {
 242         REGULATOR_LINEAR_RANGE(600000, 0, 10, 10000),
 243         REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
 244 };
 245
 246 static const unsigned int vsim_selectors[] = { 3, 4, 8, 11, 12 };
 247 static const struct linear_range vsim_ranges[] = {
 248         REGULATOR_LINEAR_RANGE(1700000, 0, 10, 10000),
 249         REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
 250         REGULATOR_LINEAR_RANGE(2700000, 0, 10, 10000),
 251         REGULATOR_LINEAR_RANGE(3000000, 0, 10, 10000),
 252         REGULATOR_LINEAR_RANGE(3100000, 0, 10, 10000),
 253 };
 254
 255 static const unsigned int vibr_selectors[] = { 0, 1, 2, 4, 5, 9, 11, 13 };
 256 static const struct linear_range vibr_ranges[] = {
 257         REGULATOR_LINEAR_RANGE(1200000, 0, 10, 10000),
 258         REGULATOR_LINEAR_RANGE(1300000, 0, 10, 10000),
 259         REGULATOR_LINEAR_RANGE(1500000, 0, 10, 10000),
 260         REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
 261         REGULATOR_LINEAR_RANGE(2000000, 0, 10, 10000),
 262         REGULATOR_LINEAR_RANGE(2800000, 0, 10, 10000),
 263         REGULATOR_LINEAR_RANGE(3000000, 0, 10, 10000),
 264         REGULATOR_LINEAR_RANGE(3300000, 0, 10, 10000),
 265 };
 266
 267 /* VUSB voltage selector not shown in datasheet */
 268 static const unsigned int vusb_selectors[] = { 3, 4 };
 269 static const struct linear_range vusb_ranges[] = {
 270         REGULATOR_LINEAR_RANGE(3000000, 0, 10, 10000),
 271         REGULATOR_LINEAR_RANGE(3100000, 0, 10, 10000),
 272 };
 273
 274 static const unsigned int vcamd_selectors[] = { 3, 4, 5, 6, 7, 9, 12 };
 275 static const struct linear_range vcamd_ranges[] = {
 276         REGULATOR_LINEAR_RANGE(900000, 0, 10, 10000),
 277         REGULATOR_LINEAR_RANGE(1000000, 0, 10, 10000),
 278         REGULATOR_LINEAR_RANGE(1100000, 0, 10, 10000),
 279         REGULATOR_LINEAR_RANGE(1200000, 0, 10, 10000),
 280         REGULATOR_LINEAR_RANGE(1300000, 0, 10, 10000),
 281         REGULATOR_LINEAR_RANGE(1500000, 0, 10, 10000),
 282         REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
 283 };
 284
 285 static const unsigned int vefuse_selectors[] = { 11, 12, 13 };
 286 static const struct linear_range vefuse_ranges[] = {
 287         REGULATOR_LINEAR_RANGE(1700000, 0, 10, 10000),
 288         REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
 289         REGULATOR_LINEAR_RANGE(1900000, 0, 10, 10000),
 290 };
 291
 292 static const unsigned int vmch_vemc_selectors[] = { 2, 3, 5 };
 293 static const struct linear_range vmch_vemc_ranges[] = {
 294         REGULATOR_LINEAR_RANGE(2900000, 0, 10, 10000),
 295         REGULATOR_LINEAR_RANGE(3000000, 0, 10, 10000),
 296         REGULATOR_LINEAR_RANGE(3300000, 0, 10, 10000),
 297 };
 298
 299 static const unsigned int vcama_selectors[] = { 0, 7, 9, 10, 11, 12 };
 300 static const struct linear_range vcama_ranges[] = {
 301         REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
 302         REGULATOR_LINEAR_RANGE(2500000, 0, 10, 10000),
 303         REGULATOR_LINEAR_RANGE(2700000, 0, 10, 10000),
 304         REGULATOR_LINEAR_RANGE(2800000, 0, 10, 10000),
 305         REGULATOR_LINEAR_RANGE(2900000, 0, 10, 10000),
 306         REGULATOR_LINEAR_RANGE(3000000, 0, 10, 10000),
 307 };
 308
 309 static const unsigned int vcn33_selectors[] = { 1, 2, 3 };
 310 static const struct linear_range vcn33_ranges[] = {
 311         REGULATOR_LINEAR_RANGE(3300000, 0, 10, 10000),
 312         REGULATOR_LINEAR_RANGE(3400000, 0, 10, 10000),
 313         REGULATOR_LINEAR_RANGE(3500000, 0, 10, 10000),
 314 };
 315
 316 static const unsigned int vmc_selectors[] = { 4, 10, 11, 13 };
 317 static const struct linear_range vmc_ranges[] = {
 318         REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
 319         REGULATOR_LINEAR_RANGE(2900000, 0, 10, 10000),
 320         REGULATOR_LINEAR_RANGE(3000000, 0, 10, 10000),
 321         REGULATOR_LINEAR_RANGE(3300000, 0, 10, 10000),
 322 };
 323
 324 static const unsigned int vldo28_selectors[] = { 1, 3 };
 325 static const struct linear_range vldo28_ranges[] = {
 326         REGULATOR_LINEAR_RANGE(2800000, 0, 10, 10000),
 327         REGULATOR_LINEAR_RANGE(3000000, 0, 10, 10000),
 328 };
 329
 330 static const unsigned int mt6366_vmddr_selectors[] = { 0, 1, 2, 3, 4, 5, 6, 7, 9, 12 };
 331 static const struct linear_range mt6366_vmddr_ranges[] = {
 332         REGULATOR_LINEAR_RANGE(600000, 0, 10, 10000),
 333         REGULATOR_LINEAR_RANGE(700000, 0, 10, 10000),
 334         REGULATOR_LINEAR_RANGE(800000, 0, 10, 10000),
 335         REGULATOR_LINEAR_RANGE(900000, 0, 10, 10000),
 336         REGULATOR_LINEAR_RANGE(1000000, 0, 10, 10000),
 337         REGULATOR_LINEAR_RANGE(1100000, 0, 10, 10000),
 338         REGULATOR_LINEAR_RANGE(1200000, 0, 10, 10000),
 339         REGULATOR_LINEAR_RANGE(1300000, 0, 10, 10000),
 340         REGULATOR_LINEAR_RANGE(1500000, 0, 10, 10000),
 341         REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
 342 };
 343
 344 static const unsigned int mt6366_vcn18_vm18_selectors[] = {
 345         0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 };
 346 static const struct linear_range mt6366_vcn18_vm18_ranges[] = {
 347         REGULATOR_LINEAR_RANGE(600000, 0, 10, 10000),
 348         REGULATOR_LINEAR_RANGE(700000, 0, 10, 10000),
 349         REGULATOR_LINEAR_RANGE(800000, 0, 10, 10000),
 350         REGULATOR_LINEAR_RANGE(900000, 0, 10, 10000),
 351         REGULATOR_LINEAR_RANGE(1000000, 0, 10, 10000),
 352         REGULATOR_LINEAR_RANGE(1100000, 0, 10, 10000),
 353         REGULATOR_LINEAR_RANGE(1200000, 0, 10, 10000),
 354         REGULATOR_LINEAR_RANGE(1300000, 0, 10, 10000),
 355         REGULATOR_LINEAR_RANGE(1400000, 0, 10, 10000),
 356         REGULATOR_LINEAR_RANGE(1500000, 0, 10, 10000),
 357         REGULATOR_LINEAR_RANGE(1600000, 0, 10, 10000),
 358         REGULATOR_LINEAR_RANGE(1700000, 0, 10, 10000),
 359         REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
 360         REGULATOR_LINEAR_RANGE(1900000, 0, 10, 10000),
 361         REGULATOR_LINEAR_RANGE(2000000, 0, 10, 10000),
 362         REGULATOR_LINEAR_RANGE(2100000, 0, 10, 10000),
 363 };
 364
 365 static unsigned int mt6358_map_mode(unsigned int mode)
 366 {
 367         return mode == MT6397_BUCK_MODE_AUTO ?
 368                 REGULATOR_MODE_NORMAL : REGULATOR_MODE_FAST;
 369 }
 370
 371 static int mt6358_get_buck_voltage_sel(struct regulator_dev *rdev)
 372 {
 373         const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc);
 374         int ret, regval;
 375
 376         ret = regmap_read(rdev->regmap, info->da_vsel_reg, &regval);
 377         if (ret != 0) {
 378                 dev_err(&rdev->dev,
 379                         "Failed to get mt6358 Buck %s vsel reg: %d\n",
 380                         info->desc.name, ret);
 381                 return ret;
 382         }
 383
 384         ret = (regval & info->da_vsel_mask) >> (ffs(info->da_vsel_mask) - 1);
 385
 386         return ret;
 387 }
 388
 389 static int mt6358_get_status(struct regulator_dev *rdev)
 390 {
 391         const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc);
 392         int ret;
 393         u32 regval;
 394
 395         ret = regmap_read(rdev->regmap, info->status_reg, &regval);
 396         if (ret != 0) {
 397                 dev_info(&rdev->dev, "Failed to get enable reg: %d\n", ret);
 398                 return ret;
 399         }
 400
 401         return (regval & info->qi) ? REGULATOR_STATUS_ON : REGULATOR_STATUS_OFF;
 402 }
 403
 404 static int mt6358_regulator_set_mode(struct regulator_dev *rdev,
 405                                      unsigned int mode)
 406 {
 407         const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc);
 408         int val;
 409
 410         switch (mode) {
 411         case REGULATOR_MODE_FAST:
 412                 val = MT6397_BUCK_MODE_FORCE_PWM;
 413                 break;
 414         case REGULATOR_MODE_NORMAL:
 415                 val = MT6397_BUCK_MODE_AUTO;
 416                 break;
 417         default:
 418                 return -EINVAL;
 419         }
 420
 421         dev_dbg(&rdev->dev, "mt6358 buck set_mode %#x, %#x, %#x\n",
 422                 info->modeset_reg, info->modeset_mask, val);
 423
 424         val <<= ffs(info->modeset_mask) - 1;
 425
 426         return regmap_update_bits(rdev->regmap, info->modeset_reg,
 427                                   info->modeset_mask, val);
 428 }
 429
 430 static unsigned int mt6358_regulator_get_mode(struct regulator_dev *rdev)
 431 {
 432         const struct mt6358_regulator_info *info = to_regulator_info(rdev->desc);
 433         int ret, regval;
 434
 435         ret = regmap_read(rdev->regmap, info->modeset_reg, &regval);
 436         if (ret != 0) {
 437                 dev_err(&rdev->dev,
 438                         "Failed to get mt6358 buck mode: %d\n", ret);
 439                 return ret;
 440         }
 441
 442         switch ((regval & info->modeset_mask) >> (ffs(info->modeset_mask) - 1)) {
 443         case MT6397_BUCK_MODE_AUTO:
 444                 return REGULATOR_MODE_NORMAL;
 445         case MT6397_BUCK_MODE_FORCE_PWM:
 446                 return REGULATOR_MODE_FAST;
 447         default:
 448                 return -EINVAL;
 449         }
 450 }
 451
 452 static const struct regulator_ops mt6358_buck_ops = {
 453         .list_voltage = regulator_list_voltage_linear,
 454         .map_voltage = regulator_map_voltage_linear,
 455         .set_voltage_sel = regulator_set_voltage_sel_regmap,
 456         .get_voltage_sel = mt6358_get_buck_voltage_sel,
 457         .set_voltage_time_sel = regulator_set_voltage_time_sel,
 458         .enable = regulator_enable_regmap,
 459         .disable = regulator_disable_regmap,
 460         .is_enabled = regulator_is_enabled_regmap,
 461         .get_status = mt6358_get_status,
 462         .set_mode = mt6358_regulator_set_mode,
 463         .get_mode = mt6358_regulator_get_mode,
 464 };
 465
 466 static const struct regulator_ops mt6358_volt_range_ops = {
 467         .list_voltage = regulator_list_voltage_linear,
 468         .map_voltage = regulator_map_voltage_linear,
 469         .set_voltage_sel = regulator_set_voltage_sel_regmap,
 470         .get_voltage_sel = mt6358_get_buck_voltage_sel,
 471         .set_voltage_time_sel = regulator_set_voltage_time_sel,
 472         .enable = regulator_enable_regmap,
 473         .disable = regulator_disable_regmap,
 474         .is_enabled = regulator_is_enabled_regmap,
 475         .get_status = mt6358_get_status,
 476 };
 477
 478 static const struct regulator_ops mt6358_volt_table_ops = {
 479         .list_voltage = regulator_list_voltage_pickable_linear_range,
 480         .map_voltage = regulator_map_voltage_pickable_linear_range,
 481         .set_voltage_sel = regulator_set_voltage_sel_pickable_regmap,
 482         .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap,
 483         .set_voltage_time_sel = regulator_set_voltage_time_sel,
 484         .enable = regulator_enable_regmap,
 485         .disable = regulator_disable_regmap,
 486         .is_enabled = regulator_is_enabled_regmap,
 487         .get_status = mt6358_get_status,
 488 };
 489
 490 /* "Fixed" LDOs with output voltage calibration +0 ~ +10 mV */
 491 static const struct regulator_ops mt6358_volt_fixed_ops = {
 492         .list_voltage = regulator_list_voltage_linear,
 493         .map_voltage = regulator_map_voltage_linear,
 494         .set_voltage_sel = regulator_set_voltage_sel_regmap,
 495         .get_voltage_sel = mt6358_get_buck_voltage_sel,
 496         .set_voltage_time_sel = regulator_set_voltage_time_sel,
 497         .enable = regulator_enable_regmap,
 498         .disable = regulator_disable_regmap,
 499         .is_enabled = regulator_is_enabled_regmap,
 500         .get_status = mt6358_get_status,
 501 };
 502
 503 /* The array is indexed by id(MT6358_ID_XXX) */
 504 static const struct mt6358_regulator_info mt6358_regulators[] = {
 505         MT6358_BUCK("buck_vdram1", VDRAM1, "vsys-vdram1", 500000, 2087500, 12500,
 506                     0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f, MT6358_VDRAM1_ANA_CON0, 8),
 507         MT6358_BUCK("buck_vcore", VCORE, "vsys-vcore", 500000, 1293750, 6250,
 508                     0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 1),
 509         MT6358_BUCK("buck_vpa", VPA, "vsys-vpa", 500000, 3650000, 50000,
 510                     0x3f, MT6358_BUCK_VPA_DBG0, 0x3f, MT6358_VPA_ANA_CON0, 3),
 511         MT6358_BUCK("buck_vproc11", VPROC11, "vsys-vproc11", 500000, 1293750, 6250,
 512                     0x7f, MT6358_BUCK_VPROC11_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 1),
 513         MT6358_BUCK("buck_vproc12", VPROC12, "vsys-vproc12", 500000, 1293750, 6250,
 514                     0x7f, MT6358_BUCK_VPROC12_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 2),
 515         MT6358_BUCK("buck_vgpu", VGPU, "vsys-vgpu", 500000, 1293750, 6250,
 516                     0x7f, MT6358_BUCK_VGPU_ELR0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 2),
 517         MT6358_BUCK("buck_vs2", VS2, "vsys-vs2", 500000, 2087500, 12500,
 518                     0x7f, MT6358_BUCK_VS2_DBG0, 0x7f, MT6358_VS2_ANA_CON0, 8),
 519         MT6358_BUCK("buck_vmodem", VMODEM, "vsys-vmodem", 500000, 1293750, 6250,
 520                     0x7f, MT6358_BUCK_VMODEM_DBG0, 0x7f, MT6358_VMODEM_ANA_CON0, 8),
 521         MT6358_BUCK("buck_vs1", VS1, "vsys-vs1", 1000000, 2587500, 12500,
 522                     0x7f, MT6358_BUCK_VS1_DBG0, 0x7f, MT6358_VS1_ANA_CON0, 8),
 523         MT6358_REG_FIXED("ldo_vrf12", VRF12, "vs2-ldo2", MT6358_LDO_VRF12_CON0, 0, 1200000),
 524         MT6358_REG_FIXED("ldo_vio18", VIO18, "vs1-ldo1", MT6358_LDO_VIO18_CON0, 0, 1800000),
 525         MT6358_REG_FIXED("ldo_vcamio", VCAMIO, "vs1-ldo1", MT6358_LDO_VCAMIO_CON0, 0, 1800000),
 526         MT6358_REG_FIXED("ldo_vcn18", VCN18, "vs1-ldo1", MT6358_LDO_VCN18_CON0, 0, 1800000),
 527         MT6358_REG_FIXED("ldo_vfe28", VFE28, "vsys-ldo1", MT6358_LDO_VFE28_CON0, 0, 2800000),
 528         MT6358_REG_FIXED("ldo_vcn28", VCN28, "vsys-ldo1", MT6358_LDO_VCN28_CON0, 0, 2800000),
 529         MT6358_REG_FIXED("ldo_vxo22", VXO22, "vsys-ldo1", MT6358_LDO_VXO22_CON0, 0, 2200000),
 530         MT6358_REG_FIXED("ldo_vaux18", VAUX18, "vsys-ldo1", MT6358_LDO_VAUX18_CON0, 0, 1800000),
 531         MT6358_REG_FIXED("ldo_vbif28", VBIF28, "vsys-ldo1", MT6358_LDO_VBIF28_CON0, 0, 2800000),
 532         MT6358_REG_FIXED("ldo_vio28", VIO28, "vsys-ldo2", MT6358_LDO_VIO28_CON0, 0, 2800000),
 533         MT6358_REG_FIXED("ldo_va12", VA12, "vs2-ldo2", MT6358_LDO_VA12_CON0, 0, 1200000),
 534         MT6358_REG_FIXED("ldo_vrf18", VRF18, "vs1-ldo1", MT6358_LDO_VRF18_CON0, 0, 1800000),
 535         MT6358_REG_FIXED("ldo_vaud28", VAUD28, "vsys-ldo1", MT6358_LDO_VAUD28_CON0, 0, 2800000),
 536         MT6358_LDO("ldo_vdram2", VDRAM2, "vs2-ldo1", vdram2,
 537                    MT6358_LDO_VDRAM2_CON0, 0, MT6358_LDO_VDRAM2_ELR0, 0xf),
 538         MT6358_LDO("ldo_vsim1", VSIM1, "vsys-ldo1", vsim,
 539                    MT6358_LDO_VSIM1_CON0, 0, MT6358_VSIM1_ANA_CON0, 0xf00),
 540         MT6358_LDO("ldo_vibr", VIBR, "vsys-ldo3", vibr,
 541                    MT6358_LDO_VIBR_CON0, 0, MT6358_VIBR_ANA_CON0, 0xf00),
 542         MT6358_LDO("ldo_vusb", VUSB, "vsys-ldo1", vusb,
 543                    MT6358_LDO_VUSB_CON0_0, 0, MT6358_VUSB_ANA_CON0, 0x700),
 544         MT6358_LDO("ldo_vcamd", VCAMD, "vs2-ldo4", vcamd,
 545                    MT6358_LDO_VCAMD_CON0, 0, MT6358_VCAMD_ANA_CON0, 0xf00),
 546         MT6358_LDO("ldo_vefuse", VEFUSE, "vs1-ldo1", vefuse,
 547                    MT6358_LDO_VEFUSE_CON0, 0, MT6358_VEFUSE_ANA_CON0, 0xf00),
 548         MT6358_LDO("ldo_vmch", VMCH, "vsys-ldo2", vmch_vemc,
 549                    MT6358_LDO_VMCH_CON0, 0, MT6358_VMCH_ANA_CON0, 0x700),
 550         MT6358_LDO("ldo_vcama1", VCAMA1, "vsys-ldo3", vcama,
 551                    MT6358_LDO_VCAMA1_CON0, 0, MT6358_VCAMA1_ANA_CON0, 0xf00),
 552         MT6358_LDO("ldo_vemc", VEMC, "vsys-ldo2", vmch_vemc,
 553                    MT6358_LDO_VEMC_CON0, 0, MT6358_VEMC_ANA_CON0, 0x700),
 554         MT6358_LDO("ldo_vcn33", VCN33, "vsys-ldo3", vcn33,
 555                    MT6358_LDO_VCN33_CON0_0, 0, MT6358_VCN33_ANA_CON0, 0x300),
 556         MT6358_LDO("ldo_vcama2", VCAMA2, "vsys-ldo3", vcama,
 557                    MT6358_LDO_VCAMA2_CON0, 0, MT6358_VCAMA2_ANA_CON0, 0xf00),
 558         MT6358_LDO("ldo_vmc", VMC, "vsys-ldo2", vmc,
 559                    MT6358_LDO_VMC_CON0, 0, MT6358_VMC_ANA_CON0, 0xf00),
 560         MT6358_LDO("ldo_vldo28", VLDO28, "vsys-ldo2", vldo28,
 561                    MT6358_LDO_VLDO28_CON0_0, 0,
 562                    MT6358_VLDO28_ANA_CON0, 0x300),
 563         MT6358_LDO("ldo_vsim2", VSIM2, "vsys-ldo2", vsim,
 564                    MT6358_LDO_VSIM2_CON0, 0, MT6358_VSIM2_ANA_CON0, 0xf00),
 565         MT6358_LDO1("ldo_vsram_proc11", VSRAM_PROC11, "vs2-ldo3", 500000, 1293750, 6250,
 566                     MT6358_LDO_VSRAM_PROC11_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON0, 0x7f),
 567         MT6358_LDO1("ldo_vsram_others", VSRAM_OTHERS, "vs2-ldo3", 500000, 1293750, 6250,
 568                     MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON2, 0x7f),
 569         MT6358_LDO1("ldo_vsram_gpu", VSRAM_GPU, "vs2-ldo3", 500000, 1293750, 6250,
 570                     MT6358_LDO_VSRAM_GPU_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON3, 0x7f),
 571         MT6358_LDO1("ldo_vsram_proc12", VSRAM_PROC12, "vs2-ldo3", 500000, 1293750, 6250,
 572                     MT6358_LDO_VSRAM_PROC12_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON1, 0x7f),
 573 };
 574
 575 /* The array is indexed by id(MT6366_ID_XXX) */
 576 static const struct mt6358_regulator_info mt6366_regulators[] = {
 577         MT6366_BUCK("vdram1", VDRAM1, 500000, 2087500, 12500,
 578                     0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f, MT6358_VDRAM1_ANA_CON0, 8),
 579         MT6366_BUCK("vcore", VCORE, 500000, 1293750, 6250,
 580                     0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 1),
 581         MT6366_BUCK("vpa", VPA, 500000, 3650000, 50000,
 582                     0x3f, MT6358_BUCK_VPA_DBG0, 0x3f, MT6358_VPA_ANA_CON0, 3),
 583         MT6366_BUCK("vproc11", VPROC11, 500000, 1293750, 6250,
 584                     0x7f, MT6358_BUCK_VPROC11_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 1),
 585         MT6366_BUCK("vproc12", VPROC12, 500000, 1293750, 6250,
 586                     0x7f, MT6358_BUCK_VPROC12_DBG0, 0x7f, MT6358_VPROC_ANA_CON0, 2),
 587         MT6366_BUCK("vgpu", VGPU, 500000, 1293750, 6250,
 588                     0x7f, MT6358_BUCK_VGPU_ELR0, 0x7f, MT6358_VCORE_VGPU_ANA_CON0, 2),
 589         MT6366_BUCK("vs2", VS2, 500000, 2087500, 12500,
 590                     0x7f, MT6358_BUCK_VS2_DBG0, 0x7f, MT6358_VS2_ANA_CON0, 8),
 591         MT6366_BUCK("vmodem", VMODEM, 500000, 1293750, 6250,
 592                     0x7f, MT6358_BUCK_VMODEM_DBG0, 0x7f, MT6358_VMODEM_ANA_CON0, 8),
 593         MT6366_BUCK("vs1", VS1, 1000000, 2587500, 12500,
 594                     0x7f, MT6358_BUCK_VS1_DBG0, 0x7f, MT6358_VS1_ANA_CON0, 8),
 595         MT6366_REG_FIXED("vrf12", VRF12, "vs2-ldo2", MT6358_LDO_VRF12_CON0, 0, 1200000),
 596         MT6366_REG_FIXED("vio18", VIO18, "vs1-ldo1", MT6358_LDO_VIO18_CON0, 0, 1800000),
 597         MT6366_REG_FIXED("vfe28", VFE28, "vsys-ldo1", MT6358_LDO_VFE28_CON0, 0, 2800000),
 598         MT6366_REG_FIXED("vcn28", VCN28, "vsys-ldo1", MT6358_LDO_VCN28_CON0, 0, 2800000),
 599         MT6366_REG_FIXED("vxo22", VXO22, "vsys-ldo1", MT6358_LDO_VXO22_CON0, 0, 2200000),
 600         MT6366_REG_FIXED("vaux18", VAUX18, "vsys-ldo1", MT6358_LDO_VAUX18_CON0, 0, 1800000),
 601         MT6366_REG_FIXED("vbif28", VBIF28, "vsys-ldo1", MT6358_LDO_VBIF28_CON0, 0, 2800000),
 602         MT6366_REG_FIXED("vio28", VIO28, "vsys-ldo2", MT6358_LDO_VIO28_CON0, 0, 2800000),
 603         MT6366_REG_FIXED("va12", VA12, "vs2-ldo2", MT6358_LDO_VA12_CON0, 0, 1200000),
 604         MT6366_REG_FIXED("vrf18", VRF18, "vs1-ldo1", MT6358_LDO_VRF18_CON0, 0, 1800000),
 605         MT6366_REG_FIXED("vaud28", VAUD28, "vsys-ldo1", MT6358_LDO_VAUD28_CON0, 0, 2800000),
 606         MT6366_LDO("vdram2", VDRAM2, vdram2, "vs2-ldo1",
 607                    MT6358_LDO_VDRAM2_CON0, 0, MT6358_LDO_VDRAM2_ELR0, 0x10),
 608         MT6366_LDO("vsim1", VSIM1, vsim, "vsys-ldo1",
 609                    MT6358_LDO_VSIM1_CON0, 0, MT6358_VSIM1_ANA_CON0, 0xf00),
 610         MT6366_LDO("vibr", VIBR, vibr, "vsys-ldo3",
 611                    MT6358_LDO_VIBR_CON0, 0, MT6358_VIBR_ANA_CON0, 0xf00),
 612         MT6366_LDO("vusb", VUSB, vusb, "vsys-ldo1",
 613                    MT6358_LDO_VUSB_CON0_0, 0, MT6358_VUSB_ANA_CON0, 0x700),
 614         MT6366_LDO("vefuse", VEFUSE, vefuse, "vs1-ldo1",
 615                    MT6358_LDO_VEFUSE_CON0, 0, MT6358_VEFUSE_ANA_CON0, 0xf00),
 616         MT6366_LDO("vmch", VMCH, vmch_vemc, "vsys-ldo2",
 617                    MT6358_LDO_VMCH_CON0, 0, MT6358_VMCH_ANA_CON0, 0x700),
 618         MT6366_LDO("vemc", VEMC, vmch_vemc, "vsys-ldo3",
 619                    MT6358_LDO_VEMC_CON0, 0, MT6358_VEMC_ANA_CON0, 0x700),
 620         MT6366_LDO("vcn33", VCN33, vcn33, "vsys-ldo3",
 621                    MT6358_LDO_VCN33_CON0_0, 0, MT6358_VCN33_ANA_CON0, 0x300),
 622         MT6366_LDO("vmc", VMC, vmc, "vsys-ldo2",
 623                    MT6358_LDO_VMC_CON0, 0, MT6358_VMC_ANA_CON0, 0xf00),
 624         MT6366_LDO("vsim2", VSIM2, vsim, "vsys-ldo2",
 625                    MT6358_LDO_VSIM2_CON0, 0, MT6358_VSIM2_ANA_CON0, 0xf00),
 626         MT6366_LDO("vcn18", VCN18, mt6366_vcn18_vm18, "vs1-ldo1",
 627                    MT6358_LDO_VCN18_CON0, 0, MT6358_VCN18_ANA_CON0, 0xf00),
 628         MT6366_LDO("vm18", VM18, mt6366_vcn18_vm18, "vs1-ldo1",
 629                    MT6358_LDO_VM18_CON0, 0, MT6358_VM18_ANA_CON0, 0xf00),
 630         MT6366_LDO("vmddr", VMDDR, mt6366_vmddr, "vs2-ldo1",
 631                    MT6358_LDO_VMDDR_CON0, 0, MT6358_VMDDR_ANA_CON0, 0xf00),
 632         MT6366_LDO1("vsram-proc11", VSRAM_PROC11, "vs2-ldo3", 500000, 1293750, 6250,
 633                     MT6358_LDO_VSRAM_PROC11_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON0, 0x7f),
 634         MT6366_LDO1("vsram-others", VSRAM_OTHERS, "vs2-ldo3", 500000, 1293750, 6250,
 635                     MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON2, 0x7f),
 636         MT6366_LDO1("vsram-gpu", VSRAM_GPU, "vs2-ldo3", 500000, 1293750, 6250,
 637                     MT6358_LDO_VSRAM_GPU_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON3, 0x7f),
 638         MT6366_LDO1("vsram-proc12", VSRAM_PROC12, "vs2-ldo3", 500000, 1293750, 6250,
 639                     MT6358_LDO_VSRAM_PROC12_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON1, 0x7f),
 640         MT6366_LDO1("vsram-core", VSRAM_CORE, "vs2-ldo3", 500000, 1293750, 6250,
 641                     MT6358_LDO_VSRAM_CORE_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON5, 0x7f),
 642 };
 643
 644 static int mt6358_sync_vcn33_setting(struct device *dev)
 645 {
 646         struct mt6397_chip *mt6397 = dev_get_drvdata(dev->parent);
 647         unsigned int val;
 648         int ret;
 649
 650         /*
 651          * VCN33_WIFI and VCN33_BT are two separate enable bits for the same
 652          * regulator. They share the same voltage setting and output pin.
 653          * Instead of having two potentially conflicting regulators, just have
 654          * one VCN33 regulator. Sync the two enable bits and only use one in
 655          * the regulator device.
 656          */
 657         ret = regmap_read(mt6397->regmap, MT6358_LDO_VCN33_CON0_1, &val);
 658         if (ret) {
 659                 dev_err(dev, "Failed to read VCN33_WIFI setting\n");
 660                 return ret;
 661         }
 662
 663         if (!(val & BIT(0)))
 664                 return 0;
 665
 666         /* Sync VCN33_WIFI enable status to VCN33_BT */
 667         ret = regmap_update_bits(mt6397->regmap, MT6358_LDO_VCN33_CON0_0, BIT(0), BIT(0));
 668         if (ret) {
 669                 dev_err(dev, "Failed to sync VCN33_WIFI setting to VCN33_BT\n");
 670                 return ret;
 671         }
 672
 673         /* Disable VCN33_WIFI */
 674         ret = regmap_update_bits(mt6397->regmap, MT6358_LDO_VCN33_CON0_1, BIT(0), 0);
 675         if (ret) {
 676                 dev_err(dev, "Failed to disable VCN33_WIFI\n");
 677                 return ret;
 678         }
 679
 680         return 0;
 681 }
 682
 683 static int mt6358_regulator_probe(struct platform_device *pdev)
 684 {
 685         struct mt6397_chip *mt6397 = dev_get_drvdata(pdev->dev.parent);
 686         struct regulator_config config = {};
 687         struct regulator_dev *rdev;
 688         const struct mt6358_regulator_info *mt6358_info;
 689         int i, max_regulator, ret;
 690
 691         switch (mt6397->chip_id) {
 692         case MT6358_CHIP_ID:
 693                 max_regulator = MT6358_MAX_REGULATOR;
 694                 mt6358_info = mt6358_regulators;
 695                 break;
 696         case MT6366_CHIP_ID:
 697                 max_regulator = MT6366_MAX_REGULATOR;
 698                 mt6358_info = mt6366_regulators;
 699                 break;
 700         default:
 701                 dev_err(&pdev->dev, "unsupported chip ID: %d\n", mt6397->chip_id);
 702                 return -EINVAL;
 703         }
 704
 705         ret = mt6358_sync_vcn33_setting(&pdev->dev);
 706         if (ret)
 707                 return ret;
 708
 709         for (i = 0; i < max_regulator; i++) {
 710                 config.dev = &pdev->dev;
 711                 config.regmap = mt6397->regmap;
 712
 713                 rdev = devm_regulator_register(&pdev->dev,
 714                                                &mt6358_info[i].desc,
 715                                                &config);
 716                 if (IS_ERR(rdev)) {
 717                         dev_err(&pdev->dev, "failed to register %s\n",
 718                                 mt6358_info[i].desc.name);
 719                         return PTR_ERR(rdev);
 720                 }
 721         }
 722
 723         return 0;
 724 }
 725
 726 static const struct platform_device_id mt6358_platform_ids[] = {
 727         {"mt6358-regulator", 0},
 728         { /* sentinel */ },
 729 };
 730 MODULE_DEVICE_TABLE(platform, mt6358_platform_ids);
 731
 732 static struct platform_driver mt6358_regulator_driver = {
 733         .driver = {
 734                 .name = "mt6358-regulator",
 735                 .probe_type = PROBE_PREFER_ASYNCHRONOUS,
 736         },
 737         .probe = mt6358_regulator_probe,
 738         .id_table = mt6358_platform_ids,
 739 };
 740
 741 module_platform_driver(mt6358_regulator_driver);
 742
 743 MODULE_AUTHOR("Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>");
 744 MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6358 PMIC");
 745 MODULE_LICENSE("GPL");